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#ifndef ROOT_H
#define ROOT_H
/*
* Copyright 2000 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
* see the License.txt file for licencing details.
*/
#ifdef __cplusplus
extern "C" {
#endif
/* 1 dimentional root finding code */
/* Bracket search function */
/* return 0 on sucess */
/* -1 on no range */
/* -2 on too many itterations */
int zbrac(
double *x1, /* Input and output bracket values */
double *x2,
double (*func)(void *fdata, double tp), /* function to evaluate */
void *fdata); /* Opaque data pointer */
/* Root finder */
/* return 0 on sucess */
/* -1 on root not bracketed */
/* -2 on too many itterations */
int zbrent(
double *rv, /* Return value */
double x1, /* Bracket to search */
double x2, /* (Min, Max) */
double tol, /* Desired tollerance */
double (*func)(void *fdata, double tp), /* function to evaluate */
void *fdata); /* Opaque data pointer */
#ifdef __cplusplus
}
#endif
#endif /* ROOT_H */
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